THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS # **MC7808BD2TR4G: A Reliable 8V Voltage Regulator for Your Electronic Designs**
When designing electronic circuits, stability and reliability are paramount. The **MC7808BD2TR4G** from ON Semiconductor is a high-performance, fixed-output voltage regulator that delivers a steady 8V DC output, making it an excellent choice for a wide range of applications. Whether you're working on power supplies, industrial controls, or consumer electronics, this component ensures consistent performance with minimal external circuitry.
## **Key Features and Benefits**
### **1. Stable 8V Output Voltage**
The MC7808BD2TR4G provides a fixed 8V output with an accuracy of ±4%, ensuring reliable power delivery to sensitive components. This precision is crucial for circuits requiring stable voltage levels, such as microcontrollers, sensors, and analog devices.
### **2. High Current Capability**
With an output current capacity of up to **1A**, this regulator can power a variety of low to medium-power devices without requiring additional amplification stages. Its robust design handles transient load changes effectively, reducing the risk of voltage fluctuations.
### **3. Built-in Protection Mechanisms**
The MC7808BD2TR4G incorporates essential protection features, including:
- **Thermal Shutdown** – Prevents overheating by disabling the regulator if temperatures exceed safe limits.
- **Short-Circuit Protection** – Safeguards the device and connected components in case of a fault.
- **Current Limiting** – Protects against excessive current draw, enhancing circuit longevity.
### **4. Wide Input Voltage Range**
This regulator accepts an input voltage range of **10V to 35V**, making it versatile for various power supply configurations. Its ability to handle higher input voltages while maintaining a stable 8V output ensures compatibility with different power sources, including unregulated DC supplies.
### **5. Low Dropout Voltage and Ripple Rejection**
The MC7808BD2TR4G exhibits excellent **ripple rejection**, minimizing noise in the output voltage—a critical feature for analog and RF circuits. Additionally, its **low dropout voltage** ensures efficient operation even when the input voltage is close to the output level.
## **Applications**
Thanks to its dependable performance, the MC7808BD2TR4G is widely used in:
- **Power Supply Units (PSUs)** – Provides regulated 8V rails for embedded systems and control circuits.
- **Industrial Automation** – Ensures stable voltage for PLCs, motor drivers, and instrumentation.
- **Consumer Electronics** – Used in audio amplifiers, set-top boxes, and other household devices.
- **Automotive Electronics** – Suitable for infotainment systems and dashboard controls.
## **Package and Availability**
The MC7808BD2TR4G comes in a **D2PAK (TO-263)** surface-mount package, offering excellent thermal dissipation and ease of PCB assembly. Its compact form factor makes it ideal for space-constrained designs while maintaining high power efficiency.
## **Conclusion**
For engineers and designers seeking a dependable 8V voltage regulator, the **MC7808BD2TR4G** stands out as a robust and efficient solution. Its combination of high current capacity, built-in protections, and wide input range makes it a versatile choice for diverse electronic applications. By integrating this component into your designs, you can achieve stable power delivery with minimal external components, ensuring long-term reliability and performance.
Whether you're developing industrial equipment, consumer electronics, or embedded systems, the MC7808BD2TR4G provides the precision and durability needed for optimal circuit operation.
